By pre-computing the maximum number of samples per tick we can avoid a
multiplication and a conditional since MAX_INTERRUPTS >
max_samples_per_tick.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This kernel patch adds the ability to filter monitoring based on
container groups (cgroups). This is for use in per-cpu mode only.
The cgroup to monitor is passed as a file descriptor in the pid
argument to the syscall. The file descriptor must be opened to
the cgroup name in the cgroup filesystem. For instance, if the
cgroup name is foo and cgroupfs is mounted in /cgroup, then the
file descriptor is opened to /cgroup/foo. Cgroup mode is
activated by passing PERF_FLAG_PID_CGROUP in the flags argument
to the syscall.
For instance to measure in cgroup foo on CPU1 assuming
cgroupfs is mounted under /cgroup:
struct perf_event_attr attr;
int cgroup_fd, fd;
cgroup_fd = open("/cgroup/foo", O_RDONLY);
fd = perf_event_open(&attr, cgroup_fd, 1, -1, PERF_FLAG_PID_CGROUP);
close(cgroup_fd);
Signed-off-by: Stephane Eranian <eranian@google.com>
[ added perf_cgroup_{exit,attach} ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4d590250.114ddf0a.689e.4482@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Make the ::exit method act like ::attach, it is after all very nearly
the same thing.
The bug had no effect on correctness - fixing it is an optimization for
the scheduler. Also, later perf-cgroups patches rely on it.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Menage <menage@google.com>
LKML-Reference: <1297160655.13327.92.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Transparent hugepages can only be created if rmap is fully
functional. So we must prevent hugepages to be created while
is_vma_temporary_stack() is true.
This also optmizes away some harmless but unnecessary setting of
khugepaged_scan.address and it switches some BUG_ON to VM_BUG_ON.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Fix text_poke_smp_batch() deadlock
perf tools: Fix thread_map event synthesizing in top and record
watchdog, nmi: Lower the severity of error messages
ARM: oprofile: Fix backtraces in timer mode
oprofile: Fix usage of CONFIG_HW_PERF_EVENTS for oprofile_perf_init and friends
Commit c0e69a5bbc ("klist.c: bit 0 in pointer can't be used as flag")
intended to make sure that all klist objects were at least pointer size
aligned, but used the constant "4" which only works on 32-bit.
Use "sizeof(void *)" which is correct in all cases.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: stable <stable@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When the fuction graph tracer starts, it needs to make a special
stack for each task to save the real return values of the tasks.
All running tasks have this stack created, as well as any new
tasks.
On CPU hot plug, the new idle task will allocate a stack as well
when init_idle() is called. The problem is that cpu hotplug does
not create a new idle_task. Instead it uses the idle task that
existed when the cpu went down.
ftrace_graph_init_task() will add a new ret_stack to the task
that is given to it. Because a clone will make the task
have a stack of its parent it does not check if the task's
ret_stack is already NULL or not. When the CPU hotplug code
starts a CPU up again, it will allocate a new stack even
though one already existed for it.
The solution is to treat the idle_task specially. In fact, the
function_graph code already does, just not at init_idle().
Instead of using the ftrace_graph_init_task() for the idle task,
which that function expects the task to be a clone, have a
separate ftrace_graph_init_idle_task(). Also, we will create a
per_cpu ret_stack that is used by the idle task. When we call
ftrace_graph_init_idle_task() it will check if the idle task's
ret_stack is NULL, if it is, then it will assign it the per_cpu
ret_stack.
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Some keyboard controllers support more than 16 columns and rows.
Increase the limit to 32.
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Expand security_capable() to include cred, so that it can be usable in a
wider range of call sites.
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (21 commits)
USB: cdc-acm: Adding second ACM channel support for Nokia N8
USB, Mass Storage, composite, gadget: Fix build failure and memset of a struct
USB: Fix trout build failure with ci13xxx_msm gadget
USB: EHCI: fix scheduling while atomic during suspend
USB: usb-storage: unusual_devs entry for Coby MP3 player
USB: ftdi_sio: Add VID=0x0647, PID=0x0100 for Acton Research spectrograph
USB: fix race between root-hub resume and wakeup requests
USB: prevent buggy hubs from crashing the USB stack
usb: r8a66597-udc: Fixed bufnum of Bulk
USB: ftdi_sio: add ST Micro Connect Lite uart support
USB: Storage: Add unusual_devs entry for VTech Kidizoom
USB SL811HS HCD: Fix memory leak in sl811h_urb_enqueue()
USB: ti_usb: fix module removal
USB: io_edgeport: fix the reported firmware major and minor
usb: ehci-omap: Show fatal probing time errors to end user
usb: musb: introduce api for dma code to check compatibility with usb request
usb: musb: maintain three states for buffer mappings instead of two
usb: musb: disable double buffering when it's broken
usb: musb: hsdma: change back to use musb_read/writew
usb: musb: core: fix IRQ check
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
virtio_net: Add schedule check to napi_enable call
x25: Do not reference freed memory.
pch_can: fix tseg1/tseg2 setting issue
isdn: hysdn: Kill (partially buggy) CVS regision log reporting.
can: softing_cs needs slab.h
pch_gbe: Fix the issue which a driver locks when rx offload is set by ethtool
netfilter: nf_conntrack: set conntrack templates again if we return NF_REPEAT
pch_can: fix module reload issue with MSI
pch_can: fix rmmod issue
pch_can: fix 800k comms issue
net: Fix lockdep regression caused by initializing netdev queues too early.
net/caif: Fix dangling list pointer in freed object on error.
USB CDC NCM errata updates for cdc_ncm host driver
CDC NCM errata updates for cdc.h
ixgbe: update version string
ixgbe: cleanup variable initialization
ixgbe: limit VF access to network traffic
ixgbe: fix for 82599 erratum on Header Splitting
ixgbe: fix variable set but not used warnings by gcc 4.6
e1000: add support for Marvell Alaska M88E1118R PHY
...
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio: console: Update Copyright
virtio: console: Wake up outvq on host notifications
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
m32r: Fixup last __do_IRQ leftover
genirq: Add missing status flags to modification mask
The mask which filters out the valid bits which can be set via
irq_modify_status() is missing IRQ_NO_BALANCING, which breaks UV.
Add IRQ_PER_CPU as well to avoid another one line patch for 39.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (68 commits)
net: can: janz-ican3: world-writable sysfs termination file
net: can: at91_can: world-writable sysfs files
MAINTAINERS: update email ids of the be2net driver maintainers.
bridge: Don't put partly initialized fdb into hash
r8169: prevent RxFIFO induced loops in the irq handler.
r8169: RxFIFO overflow oddities with 8168 chipsets.
r8169: use RxFIFO overflow workaround for 8168c chipset.
include/net/genetlink.h: Allow genlmsg_cancel to accept a NULL argument
net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6.
net: Support compat SIOCGETVIFCNT ioctl in ipv4.
net: Fix bug in compat SIOCGETSGCNT handling.
niu: Fix races between up/down and get_stats.
tcp_ecn is an integer not a boolean
atl1c: Add missing PCI device ID
s390: Fix possibly wrong size in strncmp (smsgiucv)
s390: Fix wrong size in memcmp (netiucv)
qeth: allow OSA CHPARM change in suspend state
qeth: allow HiperSockets framesize change in suspend
qeth: add more strict MTU checking
qeth: show new mac-address if its setting fails
...
This patch fixes the below compilation errors.
CC drivers/usb/gadget/ci13xxx_msm.o
CC net/mac80211/led.o
drivers/usb/gadget/ci13xxx_msm.c: In function 'ci13xxx_msm_notify_event':
drivers/usb/gadget/ci13xxx_msm.c:42: error: 'USB_AHBBURST' undeclared (first use in this function)
drivers/usb/gadget/ci13xxx_msm.c:42: error: (Each undeclared identifier is reported only once
drivers/usb/gadget/ci13xxx_msm.c:42: error: for each function it appears in.)
drivers/usb/gadget/ci13xxx_msm.c:43: error: 'USB_AHBMODE' undeclared (first use in this function)
make[4]: *** [drivers/usb/gadget/ci13xxx_msm.o] Error 1
make[3]: *** [drivers/usb/gadget] Error 2
MSM USB driver is not supported on boards like trout (MSM7201) which
has an external PHY.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits)
gpu/stub: fix acpi_video build error, fix stub kconfig dependencies
drm/radeon/kms: dynamically allocate power state space
drm/radeon/kms: fix s/r issues with bios scratch regs
agp: ensure GART has an address before enabling it
Revert "agp: AMD AGP is used on UP1100 & UP1500 alpha boxen"
amd-k7-agp: remove non-x86 code
drm/radeon/kms/evergreen: always set certain VGT regs at CP init
drm/radeon/kms: add updated ib_execute function for evergreen
drm/radeon: remove 0x4243 pci id
drm/radeon/kms: Enable new pll calculation for avivo+ asics
drm/radeon/kms: add new pll algo for avivo asics
drm/radeon/kms: add pll debugging output
drm/radeon/kms: switch back to min->max pll post divider iteration
drm/radeon/kms: rv6xx+ thermal sensor fixes
drm/nv50: fix display on 0x50
drm/nouveau: correctly pair hwmon_init and hwmon_fini
drm/i915: Only bind to function 0 of the PCI device
drm/i915: Suppress spurious vblank interrupts
drm: Avoid leak of adjusted mode along quick set_mode paths
drm: Simplify and defend later checks when disabling a crtc
...
nlmsg_cancel can accept NULL as its second argument, so for similarity,
this patch extends genlmsg_cancel to be able to accept a NULL second
argument as well.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] libsas: fix runaway error handler problem
[SCSI] fix incorrect value of SCSI_MAX_SG_CHAIN_SEGMENTS due to include file ordering
[SCSI] arcmsr: Fix the issue of system hangup after commands timeout on ARC-1200
[SCSI] mpt2sas: fix Integrated Raid unsynced on shutdown problem
[SCSI] mpt2sas: Kernel Panic during Large Topology discovery
[SCSI] mpt2sas: Fix the race between broadcast asyn event and scsi command completion
[SCSI] mpt2sas: Correct resizing calculation for max_queue_depth
[SCSI] mpt2sas: fix internal device reset for older firmware prior to MPI Rev K
[SCSI] mpt2sas: Fix device removal handshake for zoned devices
Currently the syscall_meta structures for the syscall tracepoints are
placed in the __syscall_metadata section, and at link time, the linker
makes one large array of all these syscall metadata structures. On boot
up, this array is read (much like the initcall sections) and the syscall
data is processed.
The problem is that there is no guarantee that gcc will place complex
structures nicely together in an array format. Two structures in the
same file may be placed awkwardly, because gcc has no clue that they
are suppose to be in an array.
A hack was used previous to force the alignment to 4, to pack the
structures together. But this caused alignment issues with other
architectures (sparc).
Instead of packing the structures into an array, the structures' addresses
are now put into the __syscall_metadata section. As pointers are always the
natural alignment, gcc should always pack them tightly together
(otherwise initcall, extable, etc would also fail).
By having the pointers to the structures in the section, we can still
iterate the trace_events without causing unnecessary alignment problems
with other architectures, or depending on the current behaviour of
gcc that will likely change in the future just to tick us kernel developers
off a little more.
The __syscall_metadata section is also moved into the .init.data section
as it is now only needed at boot up.
Suggested-by: David Miller <davem@davemloft.net>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Make the tracepoints more robust, making them solid enough to handle compiler
changes by not relying on anything based on compiler-specific behavior with
respect to structure alignment. Implement an approach proposed by David Miller:
use an array of const pointers to refer to the individual structures, and export
this pointer array through the linker script rather than the structures per se.
It will consume 32 extra bytes per tracepoint (24 for structure padding and 8
for the pointers), but are less likely to break due to compiler changes.
History:
commit 7e066fb8 tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
added the aligned(32) type and variable attribute to the tracepoint structures
to deal with gcc happily aligning statically defined structures on 32-byte
multiples.
One attempt was to use a 8-byte alignment for tracepoint structures by applying
both the variable and type attribute to tracepoint structures definitions and
declarations. It worked fine with gcc 4.5.1, but broke with gcc 4.4.4 and 4.4.5.
The reason is that the "aligned" attribute only specify the _minimum_ alignment
for a structure, leaving both the compiler and the linker free to align on
larger multiples. Because tracepoint.c expects the structures to be placed as an
array within each section, up-alignment cause NULL-pointer exceptions due to the
extra unexpected padding.
(this patch applies on top of -tip)
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: David S. Miller <davem@davemloft.net>
LKML-Reference: <20110126222622.GA10794@Krystal>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Oleg reported that on architectures with
__ARCH_WANT_INTERRUPTS_ON_CTXSW the IPI from
task_oncpu_function_call() can land before perf_event_task_sched_in()
and cause interesting situations for eg. perf_install_in_context().
This patch reworks the task_oncpu_function_call() interface to give a
more usable primitive as well as rework all its users to hopefully be
more obvious as well as remove the races.
While looking at the code I also found a number of races against
perf_event_task_sched_out() which can flip contexts between tasks so
plug those too.
Reported-and-reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Currently the trace_event structures are placed in the _ftrace_events
section, and at link time, the linker makes one large array of all
the trace_event structures. On boot up, this array is read (much like
the initcall sections) and the events are processed.
The problem is that there is no guarantee that gcc will place complex
structures nicely together in an array format. Two structures in the
same file may be placed awkwardly, because gcc has no clue that they
are suppose to be in an array.
A hack was used previous to force the alignment to 4, to pack the
structures together. But this caused alignment issues with other
architectures (sparc).
Instead of packing the structures into an array, the structures' addresses
are now put into the _ftrace_event section. As pointers are always the
natural alignment, gcc should always pack them tightly together
(otherwise initcall, extable, etc would also fail).
By having the pointers to the structures in the section, we can still
iterate the trace_events without causing unnecessary alignment problems
with other architectures, or depending on the current behaviour of
gcc that will likely change in the future just to tick us kernel developers
off a little more.
The _ftrace_event section is also moved into the .init.data section
as it is now only needed at boot up.
Suggested-by: David Miller <davem@davemloft.net>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
FMODE_EXEC is a constant type of fmode_t but was used with normal integer
constants. This results in following warnings from sparse. Fix it using
new macro __FMODE_EXEC.
fs/exec.c:116:58: warning: restricted fmode_t degrades to integer
fs/exec.c:689:58: warning: restricted fmode_t degrades to integer
fs/fcntl.c:777:9: warning: restricted fmode_t degrades to integer
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
AND-ing FMODE_* constant with normal integer results in following
sparse warnings. Fix it.
fs/open.c:662:21: warning: restricted fmode_t degrades to integer
fs/anon_inodes.c:123:34: warning: restricted fmode_t degrades to integer
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If reclaim after a failed charging was unsuccessful, the limits are
checked again, just in case they settled by means of other tasks.
This is all fine as long as every charge is of size PAGE_SIZE, because in
that case, being below the limit means having at least PAGE_SIZE bytes
available.
But with transparent huge pages, we may end up in an endless loop where
charging and reclaim fail, but we keep going because the limits are not
yet exceeded, although not allowing for a huge page.
Fix this up by explicitely checking for enough room, not just whether we
are within limits.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'intel/drm-intel-fixes' of /ssd/git/drm-next:
drm/i915: Only bind to function 0 of the PCI device
drm/i915: Suppress spurious vblank interrupts
drm: Avoid leak of adjusted mode along quick set_mode paths
drm: Simplify and defend later checks when disabling a crtc
drm: Don't switch fb when disabling an output
drm/i915: Reset crtc after resume
drm/i915/crt: Force the initial probe after reset
drm/i915: Reset state after a GPU reset or resume
drm: Add an interface to reset the device
drm/i915/sdvo: If at first we don't succeed in reading the response, wait
For the following rule:
iptables -I PREROUTING -t raw -j CT --ctevents assured
The event delivered looks like the following:
[UPDATE] tcp 6 src=192.168.0.2 dst=192.168.1.2 sport=37041 dport=80 src=192.168.1.2 dst=192.168.1.100 sport=80 dport=37041 [ASSURED]
Note that the TCP protocol state is not included. For that reason
the CT event filtering is not very useful for conntrackd.
To resolve this issue, instead of conditionally setting the CT events
bits based on the ctmask, we always set them and perform the filtering
in the late stage, just before the delivery.
Thus, the event delivered looks like the following:
[UPDATE] tcp 6 432000 ESTABLISHED src=192.168.0.2 dst=192.168.1.2 sport=37041 dport=80 src=192.168.1.2 dst=192.168.1.100 sport=80 dport=37041 [ASSURED]
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Fix kernel-doc warning in kernel.h from commit 7ef88ad561
("BUILD_BUG_ON: make it handle more cases"):
Warning(include/linux/kernel.h:605): No description found for parameter 'condition'
Warning(include/linux/kernel.h:605): Excess function parameter 'cond' description in 'BUILD_BUG_ON'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (42 commits)
usb: gadget: composite: avoid access beyond array max length
USB: serial: handle Data Carrier Detect changes
USB: gadget: Fix endpoint representation in ci13xxx_udc
USB: gadget: Fix error path in ci13xxx_udc gadget probe function
usb: pch_udc: Fix the worning log issue at gadget driver remove
USB: serial: Updated support for ICOM devices
USB: ehci-mxc: add work-around for efika mx/sb bug
USB: unbreak ehci-mxc on otg port of i.MX27
drivers: update to pl2303 usb-serial to support Motorola cables
USB: adding USB support for Cinterion's HC2x, EU3 and PH8 products
USB serial: add missing .usb_driver field in serial drivers
USB: ehci-fsl: Fix 'have_sysif_regs' detection
USB: g_printer: fix bug in module parameter definitions
USB: g_printer: fix bug in unregistration
USB: uss720: remove duplicate USB device
MAINTAINERS: add ueagle-atm entry
USB: EHCI: fix DMA deallocation bug
USB: pch_udc: support new device ML7213 IOH
usb: pch_udc: Fixed issue which does not work with g_serial
usb: set ep_dev async suspend should be later than device_initialize
...
Hugh Dickins found that characters in xterm were going missing and oft
delayed. Being the curious type, he managed to associate this with the
new high-precision vblank patches; disabling these he found, restored
the orderliness of his characters.
The oddness begins when one realised that Hugh was not using vblanks at
all on his system (fvwm and some xterms). Instead, all he had to go on
were warning of a pipe underrun, curiously enough at around 60Hz. He
poked and found that in addition to the underrun warning, the hardware
was flagging the start of a new frame, a vblank, which in turn was
kicking off the pending vblank processing code.
There is little we can do for the underruns on Hugh's machine, a
Crestline [965GM], which must have its FIFO watermarks set to 8.
However, we do not need to process the vblank if we know that they are
disabled...
Reported-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
SIOCGETSGCNT is not a unique ioctl value as it it maps tio SIOCPROTOPRIVATE +1,
which unfortunately means the existing infrastructure for compat networking
ioctls is insufficient. A trivial compact ioctl implementation would conflict
with:
SIOCAX25ADDUID
SIOCAIPXPRISLT
SIOCGETSGCNT_IN6
SIOCGETSGCNT
SIOCRSSCAUSE
SIOCX25SSUBSCRIP
SIOCX25SDTEFACILITIES
To make this work I have updated the compat_ioctl decode path to mirror the
the normal ioctl decode path. I have added an ipv4 inet_compat_ioctl function
so that I can have ipv4 specific compat ioctls. I have added a compat_ioctl
function into struct proto so I can break out ioctls by which kind of ip socket
I am using. I have added a compat_raw_ioctl function because SIOCGETSGCNT only
works on raw sockets. I have added a ipmr_compat_ioctl that mirrors the normal
ipmr_ioctl.
This was necessary because unfortunately the struct layout for the SIOCGETSGCNT
has unsigned longs in it so changes between 32bit and 64bit kernels.
This change was sufficient to run a 32bit ip multicast routing daemon on a
64bit kernel.
Reported-by: Bill Fenner <fenner@aristanetworks.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add caif_socket.h and if_caif.h to the kernel header files
exported for use by userspace.
Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (43 commits)
bnx2: Eliminate AER error messages on systems not supporting it
cnic: Fix big endian bug
xfrm6: Don't forget to propagate peer into ipsec route.
tg3: Use new VLAN code
bonding: update documentation - alternate configuration.
TCP: fix a bug that triggers large number of TCP RST by mistake
MAINTAINERS: remove Reinette Chatre as iwlwifi maintainer
rt2x00: add device id for windy31 usb device
mac80211: fix a crash in ieee80211_beacon_get_tim on change_interface
ipv6: Revert 'administrative down' address handling changes.
textsearch: doc - fix spelling in lib/textsearch.c.
USB NET KL5KUSB101: Fix mem leak in error path of kaweth_download_firmware()
pch_gbe: don't use flush_scheduled_work()
bnx2: Always set ETH_FLAG_TXVLAN
net: clear heap allocation for ethtool_get_regs()
ipv6: Always clone offlink routes.
dcbnl: make get_app handling symmetric for IEEE and CEE DCBx
tcp: fix bug in listening_get_next()
inetpeer: Use correct AVL tree base pointer in inet_getpeer().
GRO: fix merging a paged skb after non-paged skbs
...
Always allow backtraces when using oprofile on ARM, even if a PMU
isn't present. Restores functionality originally introduced in commit
1b7b56982f ("oprofile: Always allow
backtraces on ARM") by Richard Purdie.
It is not that obvious, but there is now only one oprofile_arch_init()
function. So the .backtrace callback is available also in timer mode.
Implemented by removing code and using stubs for oprofile_perf_{init,
exit} provided by <linux/oprofile.h>. This allows cleaning of other
architecture specific implementations too.
Cc: stable@kernel.org # 37.x
Signed-off-by: Ari Kauppi <kauppi@papupata.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
The implementations are flagged in Makefile with CONFIG_HW_PERF_EVENTS
instead of CONFIG_PERF_EVENTS.
Cc: stable@kernel.org # 37.x
Signed-off-by: Ari Kauppi <kauppi@papupata.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
